24"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 25.75"w x 25.75"h] d /* Darker color for better 4 X 12 Is CRFG2028 Width_14in

/* Darker color for better readability */ } ul { margin-bottom: 15px

actual front end outer dimensions are approximately 41

including the ability to mount without removing the thermostat when using the ring base

Install 2 Vents

+ Product Details Size - 24"w X 10"h X 2"d (for duct opening measurement only)

24"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Brown [Outer Dimensions 25.75"w x 25.75"h] d * Darker color for better 4 X 12 Is CRFG2028 Width_14in * Darker color for better readability * } ul { margin bottom: 15px actual front end outer dimensions are approximately 41